"OBS source copy plug in not working" is what I googled (for future people with this problem lol) but an extremely important thing to note is that scenes and sources ALL need to have unique names! if you try to save/load or copy paste a hold screen named hold into a different scene collection that already has a hold, and there are a bunch of sources that are just named "media source x", its gonna fuck up your current hold screen in a confusing way lol. I'd love it if there's already a scene with the same name it defaulted too "scene name (1)" and same with the sources. after I sorted that out it seems to be great! I can't wait to have different versions of a hold screen saved in a folder in case I want to use them again instead of cluttering my scene collection!